.swiper {
        width: 100%;
        height: 680px;
      }

      .swiper-slide {
        font-size: 18px;
        background: #fff;

        /* Center slide text vertically */
        justify-content: center;
        align-items: center;
      }
      .swiper-slide .lunbo {
        height: 100%;
        width: 100%;
        display: block;
        object-fit: cover;
      }